MDS-1

Mission Demonstration Satellite 1 "Tsubasa" (MDS-1) was a Japanese technology test mission. Its aim was to test commercial off the shelf components in space, especially in the Van Allen radiation belt. The whole weight of the satellite was 475 kg. It was launched by the second H-2A on February 4, 2002. Tsubusa got retired on February 26, 2003. MDS-2 was cancelled because of budget reasons.

External links

Tsubusa MDS-1

Japanese space program

Organizations

JAXA
- former ISAS
- NAL
- NASDA
USEF
NICT

Earth observation

Completed	Kyokko Jikiken Denpa Ohozora Ume 1 b Fuyo-1 Momo 1 1b Midori I II Daichi

In operation	Akebono Ibuki GEOTAIL¹ Himawari Aqua¹⁷ TRMM¹ Reimei Shizuku GPM¹ Daichi-2

Planned	GCOM-C ERG EarthCARE² GOSAT-2 ALOS-3 ASNARO

Communications,
broadcasting and
positioning

Completed	Sakura (1 2a 2b 3a 3b) Yuri 1 2a 2b 3a 3b BS 2X 3H 3N Kakehashi N-STAR a b Kirari MBSat

In operation	Kodama Kizuna N-STAR (c) QZSS Michibiki

Planned	QZSS QZS-2 QZS-3 QZS-4

Engineering tests

Completed	Ohsumi Shinsei Kiku 1 2 3 4 5 6 7 Tansei 1 2 3 4 Myojo Ryusei Orizuru Jindai EXPRESS SFU DASH USERS SERVIS-1 SERVIS-2 Ayame 1 2 LRE Tsubasa LDREX 1 2 Micro LabSat-1 SDS-1

In operation	Ajisai Kiku-8 SDS-4

Planned	PETSAT SERVIS-3 SLATS DESTINY

Cancelled	SmartSat-1

Private
miniaturized satellites

Completed	Fuji 1 2 Kanta-kun (WEOS) HIT-SAT CUTE 1.7+APD Maido-1 Kūkai Kagayaki Negai* Waseda-SAT2 Hayato WE WISH

In operation	Fuji-3 CUTE 1 1.7+APDII XI IV V SEEDS Raijin Kiseki Hitomi Horyu 2 PROITERES RAIKO FITSAT-1

Planned	WNI satellite SPROUT TSUBAME QSAT-EOS SOMESAT

Astronomical
observation

Completed	Hinotori Tenma Ginga ASCA HALCA Yohkoh Taiyo Hakucho Akari

In operation	Suzaku Hinode Hisaki

Planned	Astro-H Nano-JASMINE Solar-C LiteBIRD WISH SPICA²

Cancelled	Astro-G

Lunar and
planetary exploration

Completed	Hayabusa Hiten Kaguya (SELENE) Sakigake Suisei

In operation	Akatsuki Hayabusa 2 IKAROS PROCYON

Failed	Nozomi Shin'en

Planned	BepiColombo (MMO)² SLIM SELENE-2 JUICE² Jupiter and Trojan asteroid exploration MELOS 1 2 Tanpopo

Cancelled	Lunar-A

Reconnaissance

Completed	IGS-Optical 1 Experimentally 3 IGS-Radar 1 2

In operation	IGS-Optical 2 3 4 Experimentally 5 IGS-Rader 3 4

Planned	IGS-Optical 5 6 IGS-Rader 5 6

Human spaceflight

Completed	H-II Transfer Vehicle 1 2 3 4

In operation	International Space Station (ISS) & Kibo¹²³⁴⁵⁶

Planned	H-II Transfer Vehicle 5 6 7 8 9 R

Cancelled	HOPE-X Fuji manned spacecraft

Italics indicates projects in development.
Superscripts indicate joint development with¹NASA, ²ESA, ³ASI, ⁴CSA, ⁵RKA, ⁶AEB and ⁷INPE.

← 2001 · Orbital launches in 2002 · 2003 →

USA-164 \| INSAT-3C \| Tsubasa · DASH · VEP-3 \| HESSI \| Iridium 90 · Iridium 91 · Iridium 94 · Iridium 95 · Iridium 96 \| EchoStar VII \| Intelsat 904 \| Kosmos 2387 \| Envisat \| STS-109 \| TDRS-9 \| GRACE \| Progress M1-8 \| Shenzhou 3 \| JCSAT-8 · Astra 3A \| Intelsat 903 \| Kosmos 2388 \| STS-110 (ITS S0) \| NSS-7 \| Soyuz TM-34 \| SPOT-5 · Idefix \| Aqua \| DirecTV-5 \| Feng Yun 1D · Hai Yang 1A \| Ofek-5 \| Kosmos 2389 \| Intelsat 905 \| STS-111 (Leonardo MPLM) \| Ekspress A1R \| Galaxy 3C \| Iridium 97 · Iridium 98 \| NOAA-17 \| Progress M-46 \| CONTOUR \| Stellat 5 · N-Star C \| Kosmos 2390 · Kosmos 2391 \| Kosmos 2392 \| Hot Bird 6 \| EchoStar VIII \| Atlantic Bird 1 · MSG-1 \| Intelsat 906 \| USERS · Kodama \| METSAT \| Tsinghua 2 \| Hispasat 1D \| Progress M1-9 \| Nadezhda 7 \| STS-112 (ITS S1) \| Foton-M No.1 \| INTEGRAL \| Zi Yuan 2B \| Soyuz TMA-1 \| Eutelsat W5 \| STS-113 (ITS P1 · MEPSI 1A · MEPSI 1B) \| Astra 1K \| AlSAT-1 · Mozhayets 3 · Rubin-3 \| TDRS-10 \| Hot Bird 7 · Stentor · MFD-A · MFD-B \| ADEOS II · Kanta Kun · FedSat · µ-LabSat 1 (RITE 1 · RITE 2) \| NSS-6 \| TrailBlazer-2001 STA · Saudisat 1C · LatinSat A · LatinSat B · UniSat 2 · Rubin 2 \| Kosmos 2393 \| Kosmos 2394 · Kosmos 2395 · Kosmos 2396 \| Shenzhou 4 \| Nimiq 2

Payloads are separated by bullets ( · ), launches by pipes ( \| ). Manned flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in brackets.